Accession Number : ADA302074

Title :   Filament Winding Epoxy Resins for Elevated Temperature Service,

Corporate Author : LAWRENCE LIVERMORE NATIONAL LAB CA

Personal Author(s) : Rinde, J. A. ; Mones, E. T. ; Newey, H. A.

PDF Url : ADA302074

Report Date : 09 OCT 1978

Pagination or Media Count : 11

Abstract : We formulated and evaluated six epoxy resin systems suitable for wet filament winding of high-performance flywheels. We judged the resins on five criteria: (1) low viscosity (1.0 Pa.s at 25 deg C), (2) long gel time (> 20 h for a 30-g mass at 25 deg C), (3) high glass transition temperature (> l80 deg C), (4) high tensile strength with high modulus, and (5) good retention of mechanical properties upon accelerated heat aging (7 d at l75 deg C). From the results of mechanical and physical tests, we conclude that our resin 1 (Ciba 0510/RD- 2/APCO 2330) is the best resin for the intended application. Our resin 2 (Ciba 0510/Tonox 60-40) is the second choice; it offers a lower tensile strength and a larger loss in strength upon heat aging than resin 1 but has the highest glass transition temperature.

Descriptors :   *FILAMENT WOUND CONSTRUCTION, *EPOXY RESINS, *VISCOSITY, *FLYWHEELS, TEST AND EVALUATION, MECHANICAL PROPERTIES, TENSILE STRENGTH, AGING(MATERIALS), PERFORMANCE(ENGINEERING), PHYSICAL PROPERTIES, POLYMERS, HIGH TEMPERATURE, GLASS, LONG RANGE(TIME), TRANSITION TEMPERATURE, HIGH STRENGTH, RETENTION(GENERAL), LOW LEVEL, HEAT, GELS, LOW STRENGTH, ACCELERATED TESTING.

Subject Categories : Plastics
      Energy Storage
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE